Surgery – Blood vessel or graft preparation
Patent
1988-08-25
1990-07-17
Cannon, Alan
Surgery
Blood vessel or graft preparation
623 66, 264344, 264345, A61F 206, A61F 204
Patent
active
049418718
ABSTRACT:
A method for treating porous polytetrafluoroethylene and other types of synthetic materials having low surface tension to render the material suitable for use in bonding to living tissue. The synthetic material is enveloped with a liquid of sufficiently low surface tension to permit the liquid to enter the pores of the material. The liquid has a sufficiently low gas content to enable the liquid to absorb or displace essentially all gas nuclei held in the pores of the material as the liquid fills essentially all pores. After the low surface tension liquid has permeated all pores of the porous material, such liquid is replaced with a solution compatible with the body fluid and in which proteins have a low solubility to render the material suitable for implant. When such material is placed in contact with exposed tissue, an immediate bond is formed which permits implanting the material without the need of sutures to hold the material in place.
REFERENCES:
patent: 4164524 (1979-08-01), Ward et al.
patent: 4265927 (1981-05-01), Ericksson et al.
patent: 4302368 (1981-11-01), Dudley et al.
patent: 4367749 (1983-01-01), Dudley et al.
Cannon Alan
HSC Research Development Corporation
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